revanced-patcher/docs/2_1_setup.md

<p align="center">
  <picture>
    <source
      width="256px"
      media="(prefers-color-scheme: dark)"
      srcset="../assets/revanced-headline/revanced-headline-vertical-dark.svg"
    >
    <img 
      width="256px"
      src="../assets/revanced-headline/revanced-headline-vertical-light.svg"
    >
  </picture>
  <br>
  <a href="https://revanced.app/">
     <picture>
         <source height="24px" media="(prefers-color-scheme: dark)" srcset="../assets/revanced-logo/revanced-logo.svg" />
         <img height="24px" src="../assets/revanced-logo/revanced-logo.svg" />
     </picture>
   </a>&nbsp;&nbsp;&nbsp;
   <a href="https://github.com/ReVanced">
       <picture>
           <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://i.ibb.co/dMMmCrW/Git-Hub-Mark.png" />
           <img height="24px" src="https://i.ibb.co/9wV3HGF/Git-Hub-Mark-Light.png" />
       </picture>
   </a>&nbsp;&nbsp;&nbsp;
   <a href="http://revanced.app/discord">
       <picture>
           <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
           <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
       </picture>
   </a>&nbsp;&nbsp;&nbsp;
   <a href="https://reddit.com/r/revancedapp">
       <picture>
           <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
           <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
       </picture>
   </a>&nbsp;&nbsp;&nbsp;
   <a href="https://t.me/app_revanced">
      <picture>
         <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
         <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
      </picture>
   </a>&nbsp;&nbsp;&nbsp;
   <a href="https://x.com/revancedapp">
      <picture>
         <source media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/93124920/270180600-7c1b38bf-889b-4d68-bd5e-b9d86f91421a.png">
         <img height="24px" src="https://user-images.githubusercontent.com/93124920/270108715-d80743fa-b330-4809-b1e6-79fbdc60d09c.png" />
      </picture>
   </a>&nbsp;&nbsp;&nbsp;
   <a href="https://www.youtube.com/@ReVanced">
      <picture>
         <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
         <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
     </picture>
   </a>
   <br>
   <br>
   Continuing the legacy of Vanced
</p>

# 👶 Setting up a development environment

To start developing patches with ReVanced Patcher, you must prepare a development environment.

## 📝 Prerequisites

- A Java IDE with Kotlin support, such as [IntelliJ IDEA](https://www.jetbrains.com/idea/)
- Knowledge of Java, [Kotlin](https://kotlinlang.org), and [Dalvik bytecode](https://source.android.com/docs/core/runtime/dalvik-bytecode)
- Android reverse engineering skills and tools such as [jadx](https://github.com/skylot/jadx)

## 🏃 Prepare the environment

Throughout the documentation, [ReVanced Patches](https://github.com/revanced/revanced-patches) will be used as an example project.

1. Clone the repository

   ```bash
   git clone https://github.com/revanced/revanced-patches && cd revanced-patches
   ```

2. Build the project

   ```bash
   ./gradlew build
   ```

> [!NOTE]
> If the build fails due to authentication, you may need to authenticate to GitHub Packages.
> Create a PAT with the scope `read:packages` [here](https://github.com/settings/tokens/new?scopes=read:packages&description=ReVanced) and add your token to ~/.gradle/gradle.properties.
>
> Example `gradle.properties` file:
>
> ```properties
> gpr.user = user
> gpr.key = key
> ```

3. Open the project in your IDE

> [!TIP]
> It is a good idea to set up a complete development environment for ReVanced, so that you can also test your patches
> by following the [ReVanced documentation](https://github.com/ReVanced/revanced-documentation).

## ⏭️ What's next

The next page will go into details about a ReVanced patch.

Continue: [🧩 Anatomy of a patch](2_2_patch_anatomy.md)